D418 Diaphragm seal with compact process flange Main Features High pressure version Pressure range from 4 bar to 400 bar Temperature -60 °C … 400 °C Class 150 to 2500 NPS 1/2" to 1" DN15 to DN25 Applications Oil & Gas / Chemical Water / Waste water Energy Process technic Technical Data The diaphragm seals are used to protect the measuring instrument from high temperature, aggressive, crystalizing or corrosive media. Pressure ranges The design of the process flange allows direct mounting on standardized flange connections of pipes or tanks. Temperature The series D418 should be used especially for the measurement of medium and high pressure on process flanges with small diameters and high pressure ratings. These products can also be used in processes with fluid temperatures > 200 °C. For applications with lower temperatures and pressure ratings, it is recommended to check, if the series D415 or D425 can be used. 0 ... 4 bar to 0 ... 400 bar (min. -1 ... 5 bar for compound pressure) -60 °C ... +400 °C Filling liquids LRS1: -15 °C ... +150 °C LRS9: -40 °C ... +400 °C high temperature oil Other liquids on request Mounting Direct Process flange Stainless steel 1.4404 (AISI 316L) 1) Flange types ASME B16.5 / EN1759-1 : class 150 to 2500, NPS 1/2" to 1" (DN15 to DN25) Available flange faces see table on page 2. Other flange types on request. Diaphragm Stainless steel 1.4435 (AISI 316L) Option: Hastelloy According to the class of the flange and its standardized pressure temperature relation The filling fluid of the measuring system has to be choosen compatible to the application. Maximum pressure Upper part Process flange Diaphragm Gasket Fixing flange www.baumer.com Screws Screws / nuts 1) D418 Stainless steel 1.4404 Stainless steel 1.4404 1) Stainless steel 1.4435 1) Graphite Stainless steel 1.4404 Stainless steel A4-70 ASTM A 193 B7M / A 194 2HM Others materials see ordering details on page 3. 2015-10-21 N° Design and specifications subject to change without notice Materials Data sheet A42.05 Page 1 / 3 D418 Diaphragm seal with compact process flange Dimensions (mm) 8 screws M10 C Ø85 N x ØL ØK ØD Flange dimensions (mm) ANSI B16-5 / EN 1759-1 1/2" (DN15) 3/4" (DN20) (1) ØL Weight (kg) Class ØD ØK C 150 89 60.3 35 M14 1/2 UNC 4 2.3 300 95 66.7 37 M14 1/2 UNC 4 2.6 ISO ASME 1) 1) N 600 95 66.7 37 M14 1/2 UNC 4 2.8 900 121 82.6 38 M20 3/4 UNC 4 3.8 1500 121 82.6 38 M20 3/4 UNC 4 3.8 2500 133 88.9 38 M20 3/4 UNC 4 4.4 150 99 69.8 38 M14 1/2 UNC 4 2.7 300 117 82.6 38 M16 5/8 UNC 4 3.6 600 117 82.6 38 M16 5/8 UNC 4 3.6 900 121 82.6 38 M20 3/4 UNC 4 4.3 4.3 1500 121 82.6 38 M20 3/4 UNC 4 2500 133 88.9 38 M20 3/4 UNC 4 5 150 108 79.4 38 M14 1/2 UNC 4 3.1 300 124 88.9 38 M16 5/8 UNC 4 3.9 1" 600 124 88.9 38 M16 5/8 UNC 4 3.9 (DN25) 900 121 82.6 40 M24 7/8 UNC 4 5.4 1500 121 82.6 40 M24 7/8 UNC 4 5.4 2500 133 88.9 40 M24 7/8 UNC 4 6.1 Design and specifications subject to change without notice DN see codification on page 3. Ordering codes for flange faces Face Type Raised face Drawing ANSI B16-5 Raised face (2) (1) Raised face (7) (2) Codes G R Ra = 3.2...6.3 µm Ring joint face Ring joint face Ra = 0.4...1.6 µm EN 1759-1 Type B (1.6) (1) Type B (6.4) (2) Codes G R Ra = 3.2...6.3 µm Q Type J Q Ra = 0.4...1.6 µm Class 150 and 300 (2) Class 600, 900, 1500 and 2500 www.baumer.com 2015-10-21 (1) Data sheet A42.05 Page 2 / 3 D418 Diaphragm seal with compact process flange Ordering details D418 D418 – . . . . . Model Flange diaphragm seal D4 1 8 Upper part material Stainless steel 1.4404 (316L) Mounting Direct Outlet position Axial outlet Capillary length Without capillary Instrument connection G1/2 female 1/2NPT female Diaphragm material Stainless steel 316L (1.4435) Hastelloy C276 (2.4819) Vent valve – 0 1 9 2 1 0 0 1 9 . . 0 DN/NPS ANSI B16-5 / EN 1759-1 NPS 1/2" (DN15) NPS 3/4" (DN20) NPS 1" (DN25) Flange face type See table page 2 (codes) Flange face finish Standard finish Without SW1/4 OD 10 valve 1) SW1/4 OD 3/8 valve 1) Heat tracing circuit Without Bolts L N M A 2 6 0 . Diaphragm coating No coating Gold coating 15 µm Flange standard ANSI B16-5 EN 1759-1 PN/Class ANSI B16-5 / EN 1759-1 Class 150 Class 300 Class 600 Class 900 Class 1500 Class 2500 0 Without SW1/4 OD 10 valve 1) SW1/4 OD 3/8 valve 1) Drain valve (bottom hole) L 0 7 . M ISO (metric) 2) ASME (UNC) Process flange coating Without Flange material Hot-rolled NACE compliant 1.4404 EN 10083-3 Forged NACE compliant 1.4404 3) 2 6 1 2 3 4 5 6 . 2 3 4 x 0 Except class 2500 2) Except flange ANSI B16-5 3) Only for class 150, 300, 600 and 900 2015-10-21 Design and specifications subject to change without notice 1) www.baumer.com Data sheet A42.05 Page 3 / 3